Unrelated (was RE: so-called-hang-on-exit)

[Nicolas.Williams at ubsw.com]

"ssh -n ..." means ssh will close stdin and open /dev/null for stdin. It does not mean losing th eoutput of ssh.

Nico
-- 

> -----Original Message-----
> From: Eric Garff [mailto:egarff at omniture.com]
> Sent: Wednesday, August 07, 2002 12:11 PM
> To: openssh-unix-dev at mindrot.org
> Subject: Re: Unrelated (was RE: so-called-hang-on-exit)
> 
> 
> Sadly, no such luck.  I need the output, now when I run it by hand the
> script hangs because it doesn't get any output whatsoever.  Thanks for
> the suggestion all the same.
> 
> On Wed, 2002-08-07 at 09:51, Nicolas.Williams at ubsw.com wrote:
> > 
> > Add -n to the ssh command line - see if that fixes it.
> > 
> > Nico
> > -- 
> > 
> > > -----Original Message-----
> > > From: Eric Garff [mailto:egarff at omniture.com]
> > > Sent: Wednesday, August 07, 2002 11:15 AM
> > > To: openssh-unix-dev at mindrot.org
> > > Subject: Re: so-called-hang-on-exit
> > > 
> > > 
> > > That may be, but it only "hangs" when run from cron, if I run it
> > > manually it executes fine, could cron be causing the "hang".  
> > > Also, if I
> > > used Protocol 1 it completes normally.
> > > 
> > > On Tue, 2002-08-06 at 18:13, Frank Cusack wrote:
> > > > On Tue, Aug 06, 2002 at 02:32:33PM -0600, Eric Garff wrote:
> > > > > This isn't an actual reply to any one person, but here is 
> > > my experience:
> > > > > 
> > > > > I have tested both the patches by Jani Jaakkol and Frank 
> > > Cusack (Frank's
> > > > > I tried both the pty and non-pty changes).  I still get 
> > > the hang, here
> > > > > is my setup.
> > > > > 
> > > > > This is entered as a cronjob on one server to run every 
> > > 15 minutes:
> > > > > 
> > > > > /home/httpd/bin/cache/glb/gTest 
> > > >>/home/httpd/bin/cache/glb/gTest.log
> > > > > 2>>/home/httpd/bin/cache/glb/gTest.log
> > > > > 
> > > > >   here are the guts of the script:
> > > > > 	/usr/local/bin/ssh hostname /bin/ls /some/dir | 
> /usr/bin/wc -l ;
> > > > > /bin/ls /some/other/dir | /usr/bin/wc -l ; /bin/ls 
> > > /some/other/dir |
> > > > > /usr/bin/wc -l"
> > > > > 
> > > > > The script is actually a php script that does a number of 
> > > other things
> > > > > before it executes the ssh (database to grab hostnames, 
> > > etc.), but that
> > > > > is how the ssh portion pans out.  After executing the 
> > > command it then
> > > > > starts a 20 second timer, and if the ssh session is still 
> > > alive, it
> > > > > kills it.  Also, if I run the script by hand (not crond) 
> > > it completes
> > > > > just fine (no hang).
> > > > > 
> > > > > Any ideas?  Your time is MUCH appreciated.
> > > > 
> > > > You're doing something wrong.  Your ssh command is not 
> an example of
> > > > the hang-on-exit problem.
> > > > 
> > > > /fc
> > > -- 
> > > Eric Garff
> > > System Administrator
> > > egarff at omniture.com
> > > 801.722.0134
> > > 
> > > Omniture
> > > http://www.omniture.com
> > > "Unique Questions, Precise Answers"
> > > _______________________________________________
> > > openssh-unix-dev at mindrot.org mailing list
> > > http://www.mindrot.org/mailman/listinfo/openssh-unix-dev
> > > 
> > 
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> > 
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> -- 
> Eric Garff
> System Administrator
> egarff at omniture.com
> 801.722.0134
> 
> Omniture
> http://www.omniture.com
> "Unique Questions, Precise Answers"
> _______________________________________________
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> http://www.mindrot.org/mailman/listinfo/openssh-unix-dev
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